The regular 30-minute classes intersperse strength-training sessions with heart-pumping cardio work atop 13 platforms for stationary aerobics. During Curves' 30-minute Zumba classes, ladies eschew the regular class's aerobic work for Zumba's high-energy, Latin-inspired dance moves. A CurvesSmart card stores individual fitness specs and plugs into each strength machine, turning it into a virtual personal trainer. A green light indicates when exercisers have hit their target intensity level—a measurement that grows more challenging as their brawn increases. At the end of their workout, patrons receive a detailed report on strength gained and calories burned.

The Fine Print

Promotional value expires Nov 14, 2012. Amount paid never expires.Limit 1 per person, may buy 2 additional as gifts. Limit 1 per visit. Valid only for option purchased. Must activate by expiration date on your Groupon, 2-month membership expires 2 months from activation date, and 1-month membership expires 1 month from activation date. Must sign waiver. New clients only. Classes must be used by the same person. Appointments recommended for Zumba classes. Valid only at locations listed.Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

About Curves

As they enter the training circle at Curves, female guests come face-to-face with the smiles of other women. And just as points on a circle share a common distance from the circle's center, workout participants share the experiences of those nearby, trading stations throughout the 30-minute training session. One minute is spent on a piece of strength-training equipment built for feminine frames and designed to work two opposing muscle groups with a single movement. Exercisers then move on to a recovery station, where they run, jog, or dance to maintain heart rates and keep platforms in place during momentary losses of gravity.